A solar power setup suitable for refrigerator use requires several devices in addition to solar panels. Batteries are needed to store the power that the refrigerator will use at night or when clouds block the sun. A device called a charge controller will smooth the flow of power from the panels to the battery. The charge controller protects the battery from drastic fluctuations in power and ensures that it always receives the proper voltage and current. Lastly, an inverter will convert the direct current (DC) power of your battery to the alternating current (AC) power used by the refrigerator.
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